[Freeswitch-users] Force Inband DTMF Reception

Dragos Oancea dragos at freeswitch.org
Thu Nov 26 17:09:53 UTC 2020


How about if you set channel variable "dtmf_type" to value "none" ?

On Thu, Nov 26, 2020 at 5:59 PM Adrian Worutowicz <
adrian.worutowicz at esifrance.net> wrote:

> Hello,
>
>
>
> For incoming calls, I want to receive DTMF inband.
>
>
>
> FS receives INVITE and at certain stage sends 200 OK with a SDP section,
> which always contains :
>
>
>
> *a=rtpmap:101 telephone-event/8000* (what means ‘DTMF in RTP metadata’).
> Indeed the DTMFs come via RTP.
>
>
>
> I tried various FS configuration options to remove that line, without
> success.
>
>
>
> How to do it? How to tell a gateway to send DTMFs inband ?
>
>
>
> In advance thank you very, very much,
>
> Adrian.
>
>
>
>
>
>
>
>
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